Roller screen construction



Nov. 29, 1938. M. BARROW ROLLER SCREEN CONSTRUCTION Filed Feb. 13, l956 INVENTOR. BY 270 M %RNEY.

Patented Nov. 29, 1938 t g Ul'iED STATES rATE t 2,138,564

' ROLLER SCREEN CONSTRUCTION I Max Barrow, Boston, Mass.

Application February 13, 1936, Serial No. 63,708

2 Claims. (01. 15639) This. application relates to roller screen conretroverted flange construction defining a gutter structions and aims to provide a novel and effi- 3! whose free edge is considerably spaced from cient roller screen construction for screening an the screen. open area in a surface. More particularly the Extending along pp cal e es Of t e invention relates to roller screen constructions op n a a to be Screened, from the pp to the 5 adapted to screen window openings in building lower ends of the same, is a pair of tracks, each walls. pair of which includes a side portion 32 and a For an understanding of the invention, which back portion 33, the latter having a track proper relates most particularly to details of construc- 0r run e 3 0 trapezoidal Construction- The tion, reference should be had to the annexed side tracks are secured to and extend from the 10 drawing, an understanding of which may be lower end of the open area to be screened along gained by reference to the. following detailed dethe l 0 de edges up to points somewhat bescriptive matter. In the drawing, low the gutter 3! from which points they are di- Fig. 1 is a small scale view showing a window rected away from the wall In towards the gutter opening equipped with a roller screen e n t uewhich is formed in its lower surface with indenr OFFlCE tion of the invention; tations receiving the upper ends of the side The remaining figures show details of eon truetracks. The back tracks and with them their tion in larger scale. runners 34 extend from the lower end of the area Referring to the drawing, it will be seen that o be s r n along h lamb o side edges f at it there is shown a building wall or the like h are to the upp edge of the area n a 20 in which is a window opening representing the their upper and lower ends the back tracks are open area to be screened. Disposed within opfiXed t0 the pp d We ends of the edge of posed vertical edges or jambs of the opening at the p area to be S dthe upper end of the same are housings H cone lower end O the Screen is provided With a taining drum wound springs l2 whose free ends S e metal reinforcing Strip 36 fo With y- 25 are seated within the slots or kerfs I4 of pins l5 e S ots 37 and the reinforcing strip is formed journalled in central openings of the housings, to be Somewhat pliable so as to form a wiping these pins having enlarged portions l6 within S W e lower edge o the area t bf the area to be screened. Extending between and screened. The slots 37 receive p 38 formed on connecting the enlarged portions it of the joura tube SI S Within t tube are elOIl- 30 nalling pins l5 and receiving them is atubular gated bars 4| n who e fr n are blocks 42 roller ll having indentations l8 keying the roller p vi ed with sl s 43 receiving h tra k r to the pin portions 56. The roller is formed with runners and telescoped around the ba s keyhole slots is some of which are b t een th tween their blocks 42 and center blocks 46 staenlarged portions lb of the pins and others of tienarily mounted Within the tube 43 are 35 which are in registry with these enlarged por- DIeSSiOII Springs 45 which t to e t e blO s tions or the pins, and in all of the keyhole slots {5 o h fr n of e rs 4! w y from the are disposed buttons 2c formed on sheet m tal center line of the area to be screened, so that the edge strips 2! receiving and soldered to the upinner edges of the slots 43 will be biased into per free end of the roller screen 22. cla p engagement W t e runners 34- 4 Since some of the buttons pass through keyhole Providing a manually Operable mea s slots of the roller in registry with the enlarged w y s h clamping engagement may be deportions of the pins, these portions are slotted stroyed, there are Secured t0 t e ends 0f the bars as indicated at 23 to provide clearance for the 4! that proje t hro a d are guided n t e buttons disposed in the adjacent keyhole slots. fixed blocks 44 finge Pieces 43 projecting through 45 Shielding the roller H is a hood 39 which conan elongated Slot 0f the tube t Will be nects and receives enlarged portions of the hous- Observed that When the finger pieces e directed ings l I, whereby it is disposed in sealed relation towards each other in a manner at Will be 0bwith the wall it except for a line at the juncture vious, the blocks 42 on the free ends of the bars 50 of the lower surface of the hood with the area M will be pulled towards each other to destroy 50 to be screened, which line provides a passage for the clamping engagement aforesaid; and when the screen 22 as it rolls off and onto the roller H. the finger pieces are released, the springs 45 will For protecting the screen against raindrip from urge the blocks 42 away from each other and the hood, there is provided on the lower surface create the clamping engagement aforesaid.

of the hood adjacent the line above described a The provision of the manually controllable 55 clamping arrangement at the lower end of the screen provides a means which when held will permit the screen to be moved up and down as desired with perfect freedom and which when released will provide a clamping engagement which holds the screen in any desired position.

Now having described the roller screen construction of this application, reference will be had to the claims which follow for a determination of the monopoly sought to be covered herein.

I claim: 7

1. A movable screen construction including in combination stationary tracks at opposed vertical edges of the open area to be screened, the tracks being in the form of vertically extending strips, the front and two sides of each of which are exposed, a bar on and reinforcing the lower edge. of the screen and formed at its free ends and in its back with grooves receiving the strips so that the lower end of the screen may be guided in its vertical movement by the cooperation of the strips and grooves each groove having two side surfaces and a back surface, the bar comprising separated sections, resilient means at the lower end of the screen tending to bias the free ends of the bar sidewise to cause sides of the grooves to be urged into clamping engagement with sides of the strips to hold the lower end of the screen stationary, and manually operable means operable for opposing the resilient means and for freeing the aforementioned sides of the grooves in the bar ends from clamping engagement with the strips, the bar being separable as a whole from the strips by movement of thebar in a direction transverse to its longitudinal axis, frontwards.

2. A construction of the character described in claim 1 wherein the resilient means at the lower end of the screen tends to bias the free ends of the bar away from each other and wherein the means operable for opposing the resilient means so operates by drawing the free ends of the bar towards each other.

MAX BARROW. V 

